Optic Atrophy
NGS panel

Genes
(full coding
region):

OPA1, OPA3, TMEM126A

Lab method:

NGS panelNGS panel with CNV

TAT:

6-9 weeks

Specimen requirements:

2-4 ml of blood with anticoagulant EDTA

1 µg DNA in TE, AE or pure sterile water at 100-250 ng/µl
The A260/A280 ratio should be 1.8-2.0. DNA sample should be run on an agarose gel as a single band, showing no degradation, alongside with a quantitative DNA marker.

Targeted regions sequencing

Genes (targeted regions):

OPA1

Lab method:

Next generation sequencing

TAT:

2-4 weeks

Specimen requirements:

2-4 ml of blood with anticoagulant EDTA

1 µg DNA in TE, AE or pure sterile water at 100-250 ng/µl
The A260/A280 ratio should be 1.8-2.0. DNA sample should be run on an agarose gel as a single band, showing no degradation, alongside with a quantitative DNA marker.

Deletion/duplication analysis of the OPA1 gene

Genes:

OPA1

Lab method:

MLPA

TAT:

4-6 weeks

Specimen requirements:

2-4 ml of blood with anticoagulant EDTA

1 µg DNA in TE, AE or pure sterile water at 100-250 ng/µl
The A260/A280 ratio should be 1.8-2.0. DNA sample should be run on an agarose gel as a single band, showing no degradation, alongside with a quantitative DNA marker.

Optic atrophy is characterized by progressive bilateral blindness due to the loss of retinal ganglion cells and optic nerve deterioration. The severity of vision loss varies from nearly normal vision to complete blindness. The age of onset is usually between 4 and 6 years, but optic atrophy rarely causes severe vision impairment in childhood.